New York Rep. Dan Donovan is facing a GOP primary challenge from his predecessor, Rep. Michael G. Grimm, in the 11th District. (Bill Clark/CQ Roll Call file photo)
Incumbents will be on defense and challengers in key House races will face their first tests in Tuesday’s primaries, as voters in seven states head to the polls.
Five states are holding their regularly scheduled primaries, while Republicans in Mississippi and South Carolina will weigh in on House primary runoffs. Tuesday will also determine whether 2012 presidential nominee Mitt Romney and former Rep. Michael G. Grimm, a convicted felon, can jump-start their political comebacks.